Categories: Malware

Win32:CVE-2021-26084-A [Expl] (file analysis)

The Win32:CVE-2021-26084-A [Expl] is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Win32:CVE-2021-26084-A [Expl] virus can do?

  • Possible date expiration check, exits too soon after checking local time
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid

How to determine Win32:CVE-2021-26084-A [Expl]?


File Info:

name: AC7C05AB4D9DE99F5976.mlwpath: /opt/CAPEv2/storage/binaries/2569cc660d2ae0102aa74c98d78bb9409ded24101a0eeec15af29d59917265f3crc32: D95DCF72md5: ac7c05ab4d9de99f597643d219a90d04sha1: 08f22c5fc0046af092c04917dddab5c2dc758767sha256: 2569cc660d2ae0102aa74c98d78bb9409ded24101a0eeec15af29d59917265f3sha512: 141117d47cb198398ae8c481396af4b162f2ea6037c30bcb83c758b758c9d527a4d9ed9a9e08b5127dd618358fe578fd079bd0251c57c48c8ef1f36491d01aa8ssdeep: 768:FkJj9lP8drOpng0s+1BNc/wTF8/DizSgWO9bD:FKj8v0s+1Lc/wh8/DiziIDtype: PE32+ executable (DLL) (GUI) x86-64, for MS Windowstlsh: T1B33396D47AE49CDBEE24823C01F7C232267DBAD147534B53AA30A5350F12BE53AE5786sha3_384: 117da509896b2165c8503adeaf1df05b0b61afcc7916ebbdefd2041f4d8ea80224d8c04dc895d64f36db2c761091ede2ep_bytes: 4883ec48488b05b5360000c700000000timestamp: 2021-09-01 22:07:58

Version Info:

0: [No Data]

Win32:CVE-2021-26084-A [Expl] also known as:

Lionic Trojan.Win32.Bulz.4!c
DrWeb Trojan.Siggen15.6651
MicroWorld-eScan Gen:Variant.Bulz.391590
FireEye Gen:Variant.Bulz.391590
ALYac Trojan.Shelma.gen
Malwarebytes Trojan.ShellCode
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win64.Rozena.LV
K7AntiVirus Trojan ( 00581ccb1 )
Alibaba Trojan:Win64/Shelma.a9d99f96
K7GW Trojan ( 00581ccb1 )
CrowdStrike win/malicious_confidence_100% (W)
Cyren W64/Trojan.EQCZ-6796
Symantec Trojan.Gen.2
ESET-NOD32 Win64/Rozena.LV
TrendMicro-HouseCall Trojan.Win64.TINYOMED.ZYII
Paloalto generic.ml
Kaspersky Trojan.Win64.Shelma.nii
BitDefender Gen:Variant.Bulz.391590
Avast Win32:CVE-2021-26084-A [Expl]
Tencent Win64.Trojan.Shelma.Lors
Ad-Aware Gen:Variant.Bulz.391590
Emsisoft Gen:Variant.Bulz.391590 (B)
Zillya Trojan.Rozena.Win64.8856
TrendMicro Trojan.Win64.TINYOMED.ZYII
McAfee-GW-Edition RDN/Generic.dx
Sophos Mal/Generic-R + Troj/Agent-BHRQ
Jiangmin Trojan.Shelma.jmb
Avira TR/Rozena.ncspn
MAX malware (ai score=87)
Kingsoft Win32.Troj.Win64.n.(kcloud)
Gridinsoft Trojan.Win64.ShellCode.cc
Microsoft Trojan:Win32/Casdet!rfn
GData Gen:Variant.Bulz.391590
Cynet Malicious (score: 99)
AhnLab-V3 Malware/Win64.Generic.C4244522
McAfee RDN/Generic.dx
VBA32 Trojan.Win64.Shelma
Cylance Unsafe
Rising Trojan.Rozena!8.6D (CLOUD)
Yandex Trojan.Shelma!emVB8+Q99fs
Ikarus Trojan.Win64.Rozena
Fortinet W64/Shelma.LV!tr
Webroot W32.Trojan.Gen
AVG Win32:CVE-2021-26084-A [Expl]
Panda Trj/CI.A

How to remove Win32:CVE-2021-26084-A [Expl]?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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